lambda add trigger cloudwatch logs command

To trigger a Lambda function on AWS CloudWatch Logs, you can follow these steps:

1. Open the AWS Management Console and go to the CloudWatch service.
2. In the left navigation pane, click on "Logs" and then select the desired log group.
3. In the log group, click on "Actions" and then select "Create metric filter".
4. In the "Create metric filter" wizard, specify a filter pattern to match the log events that you want to trigger the Lambda function. You can use filter patterns such as a specific text or regular expressions.
5. Click on "Assign metric" and then choose "Create new metric".
6. Enter a name for the metric and a namespace (e.g., "Lambda/Trigger").
7. Click on "Create filter" to save the metric filter.
8. Go to the Lambda service in the AWS Management Console.
9. Select the Lambda function that you want to trigger.
10. In the function's configuration, click on the "Triggers" tab.
11. Click on "Add trigger" and select "CloudWatch Logs" as the trigger type.
12. Select the log group and the metric filter that you created in the previous steps.
13. Choose any additional configuration options (e.g., batch size, starting position) as needed.
14. Click on "Add" to save the trigger configuration.

Now, whenever a log event matching the specified filter pattern is found in the specified log group, it will trigger the Lambda function. You can check the CloudWatch Logs for any error messages or logs produced by the Lambda function